Zoas melting..ANyone try vitamin C

[Paradox]

So I have seperaste colonies slowly melt away in the last month. Ive been lazy about trying to resolve it, but now its starting to affect Nice colonies. I was reading about people adding vitamin C..

Anyone have any thoughts or experience with random zoas colonies melting. They were healthy for a very long time and slowly one colony at a time starts showing signs and dies away.

 

[70Cuda]

have you checked for nudis?

 

[bluenassarius]

yep check after lights go out with flash light. i was shocked to find nudis a few years back.